Henry m



(Mode1.)

H. M. PAINE.

KNOB FOR LATCH LOCKS.

No. 246,631. Patented Sept. 6,1881.

E va i07 UNITED STATES PATENT OFFICE.

HENRY M. PAINE, OF NEWARK, NEW JERSEY, ASSIGNOR TO BENNET OSBORN, OFSAME PLACE.

KNOB FOR LATCH-LOCKS.

SPECIFICATION forming part of Letters Patent No. 246,631, datedSeptember 6, 1881.

Application filed March 30, 1881.

T 0 all whom it may concern:

Be it known that I, HENRY M. PAINE, a citizen of the United States,residing at Newark, in the county of Essex and State of New J ersey,have invented a new and useful Improvement in Door-Knobs, of whichthefollowing is a specification.

In the accompanying drawings, Figure 1 is a vertical longitudinalsection of my improved knob. Fig.2 is a top view of the collar. Fig. 3shows the key, and Fig. 4 is a front view of the knob in place.

The object of my invention is to make the external knob ot a doorperform the duties of a lock.

The nature of my invention consists in fitting the external knob, A,Fig. 1, loose on the shank B. On the head of the shank is secured acollar, (1, on the face of which are inserted studs 0 c. The face of theknob, Figs. 1 and (Model.

4, is slotted, d, in its center to receive a springkey, 0, Fig. 3.

It will be seen that when the key is not in the slot the knob will beinoperative to turn the shank, but that when the key is in position thelugs e 0, Fig. 3. will engage the studs 0 c, Fig. 1, and secure the knobto the shank.

I do not confine myself to the peculiar form ofkey set forth, as itsdevices may be as vaiied as that of any other form of look.

I claim- The loose knoh A, in combination with the shank B, collar a,studs 0 c, and spring-key U, substantially in the manner and for thepurpose set forth.

HENRY M. PAINE.

Witnesses:

G. ()SBORN, H. W. MULHoUsE.

